Surge Arrester is mainly used in substations, overhead transmission lines, to protect power equipment and transmission lines from lightning shock waves, to ensure the normal operation of electrical facilities. Surge arrester of Chint mainly have two types: porcelain type and composite type, and the voltage is from 10kV to 750kV. Surge Arrester meets IEC & ANSI standards , of which have obtained certificates of KEMA and Chinese Labs which are authorized by ILAC and CNAS organizations.